Mechanics | Relativity Answers

Identify the equations and illustrate how to calculate the distance travelled by an object, if the only data available was the time travelled, the final velocity, the mass of the object and the force exerted on the object.

a man can row downstream 32km in 6 hours.he can row 14km in same time if it is upstream,then the velocity of the stream is?

A driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelerate uniformly to a stop in 99m?

When an object comes to a sudden stop, how is the 3rd law of motion acting upon it?

The hydrostatic pressure 'P' of a liquid column depends upon the density 'd',height 'h' of liquid column and also an accleration 'g' due to gravity.using dimensional analysis.derive formula for pressure P.

A force of 8.75N is applied to a mass of 3.5kg placed on a horizontal surface. If the coefficient of friction is placed between the mass and the surface is 0.2, what is the mass of acceleration?

dina and her family are going camping.The campsite is 3/4 miles away.They walk at a stedy speed of 2 1/2 mi/h.How many minutes would it take to get to the campsite?

a bullet of mass 0.01kg travelling at a speed of 500meters per seconds strikes a block of mass 2kg which is suspended by a string of length 5 meters and emerges out.The block rises by a vertical heigth of 0.1meters.What is the speed of bullet?

A car starts motion from rest at uniform acceleration of 2m/sec 2
for 3 seconds ,and then it maintains a constant speed for 2 seconds.Then the breaks are used to decelerate the car uniformly to rest during a time of 3 seconds.

Draw the graph representing the journey of the car then calculate

1)the maximum speed in km/sec
2)the total displacement covered

A cart rolls down a ramp with an acceleration of 4.2 m/sec^2. If the cart starts from rest, how fast is it moving at the end of 4 seconds?